Sloshing Characteristics of Submerged-Sleeve-Valve Stilling Well

Abstract

Water-surface displacement z_S is detected to investigate the evaluation of sloshing in operation of a submerged-sleeve-valve stilling well in which a sleeve valve regulates flow rate by opening/closing the sleeve. As a result, we reveal the effect of sloshing on z_S. The dominant frequency of sloshing occasionally becomes lower by about 5% than the theoretical eigen frequency due to the existence of an upstream pipe in the stilling well.